docs: Add docs for DevView (#275)

* docs: Add docs for DevView

Contains information about:
- How to access it
- What it's for
- Explanation of certain features

* fix: Update broken image link

* fix: Mention correct number of clicks
on version number

* docs: Mention batch file to run mods PR profile

1 files changed, 28 insertions, 0 deletions

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+# Dev tools
+
+![dev view screenshot](assets/dev-view-screenshot.png)
+
+FlightCore features a hidden view that contains development features.
+
+It's targetted at both Northstar and FlightCore contributors. Among other things it contains buttons for unreleased features in FlightCore and tools to help with Northstar development.
+
+To activate it, spam click the FlightCore version number in the settings view at least 6 times. After that a new entry named _DEV_ should appear in the menubar.
+
+## Northstar
+
+### Pull request install
+
+The dev view offers a way to install pull request from the [NorthstarLauncher](https://github.com/R2Northstar/NorthstarLauncher) and [NorthstarMods](https://github.com/R2Northstar/NorthstarMods) repositories.
+
+Launcher pull requests overwrite `NorthstarLauncher.exe` and `Northstar.dll`.
+
+Mod pull requests install into a separate profile called `R2Northstar-PR-test-managed-folder`. \
+When installing a mods PR, FlightCore will place `r2ns-launch-mod-pr-version.bat` into your Titanfall2 directory that can be used to run that PR profile directly. \
+The batch file simply runs `NorthstarLauncher.exe -profile=R2Northstar-PR-test-managed-folder`
+
+
+## FlightCore
+
+The dev view contains various buttons that call functions that might not be fully implemented or tested yet.
+
+Additionally it has some buttons for testing like the _Panic button_ which force crashes the application to test automatic log uploading on crash among other things.